Valve.



Patented Oct. .20, 1914.

VALVE.

APPLICATION FILED APR.2,1913,

A. J. SNOW, A. M. KIDD L J. H. WHALEY.

lf3-y1,

UNiTED ,STATES PATENT OFFICE.

ALBERT J. sNow, ARCHIE M. KIDD, lAND JOHN H. WHALEY, or TANT, CALIFORNIA.

VALVE'.

ySpeeification. of Letters Patent. i Patented Oct- 20 1914, Application filed 'April 2, 1913. seriai No. 758,368. i

To all whom t may concern Be it known that we, ALBERT J. SNOW, ARGHIE M. Kinn, and JOHN H. Wvnairig'all citizens of the United States, residing at Taft, in the county of Kern and State of California, have invented new and useful Improvements in Valves, o-f whieh'the fol-l' lowing is a specification.

This invention relates to a valve ball check type.

The object of this invention is to provide a simple and cheaply .'manufacturedball valve which will be particularly adapted for f use induplex pumps, and theV like, handling oil or water under high pressure, which oil or water carries a certain per- ,centage of mud, sand, or the like.

Another object of the invention is-to provide a novel form of valve cage by, which the lift of the ball valves may be adjusted, and which will allow a free circulation of the pumped fluid in all directions, thus preventing the collection of any sand or gravel operation of the valve.

The .invention consists of the. parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompany ing drawings, in which- Figure 1 is a central section through the valve chest of a standard form of duplex pump showing the application of the valve.

Fig. 2 is aside elevation of the valve proper.

Fig. 3 is a central section 'of same. Fig. 4 is a plan view of the valve.

Referring to thedrawings, A indicates the valve seat which may be designed to fit any make of pump using a check or lift valve. The valve'may be threaded on the outside, as `at 2, to screw in the pump, or, it may be tapered to slip in or turned to a shoulder and secured in place by cap screws. The

valve seat A is drilled to'form three or more openings or seats 3,. which are normally closed by a similar number of steel balls 4, the movements of which are controlled by a valve cage adjustably secured with relation to the valve seat proper by a central bolt 6. The valve cage is also providedwith three or Kmore openings 7,. .the inner ends of which are tapered, as at 8. These openings are so positioned as to register with the corresponding valvev seat openings 3; the proper register being maintained by any suitable means, or, ashere shown, .by the doivel pin 49.

Interposed between the valve cageand the `valve seat proper and surrounding the bolt 6 1s a suitable number of perforated disks l0. T hese are provided for the purpose of ad] usting the distance between the valve seat and cage, or in yother words, to increase or ball valves.

vIn operation, by' referring .to Fig. l, it

lifted on theoutward movement of the piston 13. This is caused by the lpressure of the incoming fluid on the lower side of the several valves. Any sand or like material ing through the several' openings 3 in lthe valve seat A which might have a tendency lto lodge between the valve cage and the seat proper and thus `tend to interfere with the movements of theball valves 4 will in this instance be entirely removed the moment `baok pressure is created by the reverse movement of the piston. This is caused by the reverse movement of the fluid whichwill enter through the upper portions of' the openings 7 and cause the several ball valves 4 to be seated and also discharge any lodged sand, or like material, which might have been deposited between the cage and the valve seat proper. Such lodged material would thus be removed at every reciproca-l movement of the piston bythe reverse movement of the fluid passing between the cage and the valve seat proper in its passage through the pump.

We wish it understood. that this form of valve may be lit-ted in any standard pump, such as the duplex types, either vin connection with high or low pressure, and that it has proved of great advantage when handling such fluids as oil and water containing a heavy deposit of mud, sand, or gravel, this being especially encountered when drilling oil wells and when circulating the water through the standard tools.

water, less trouble is encountered as the ball .decrease the'lifting movement of the-several will be seen that the valves 11 and 12` will =be lentering with the oil/,onwater and dischargv valves are self-adjusting, self-seating and automatic in operation. The all-steel contails ofconstruction may be resorted to with- Y in the scope of the appended claim and that we do not wish to limit ourselves to the exe.

act construction here shown.

'Having thus described our invention, what We claimand desire to secure by Letters Pat- A pump valve consisting of a relatively thick lower member having a plurality of transverse openings' iiared at their upper ends to form valve seats, a ball valve in each seat, a relatively thick upper member having a plurality of transverse openings similar to the openings of the lower member flared at their lower ends so as to provide housings which extend up into the body of the upper member and aline with the openings of the lower member to enable the ball valves to be received within the housings, and a bolt passed through the upper niember and having its lower end threaded into the lower member, said members being spaced at such distances that the upper portions of the balls project into the housings at all times.

In testimony whereof wehave hereunto set our hands in the presence of two subscribing Witnesses.

ALBERT J. SNOW. ARCHIE M. KIDD. JOHN H. WHALEY.

Witnesses z E. A. FLANDnRs, FRED l?. BoLsTAD. 

